Butterfly-shaped anti-fatigue mat



FIG. 1 is a perspective view of the butterfly-shaped anti-fatigue matshowing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a left side elevational view, the right side being a mirrorimage; thereof.

CLAIM The ornamental design for a butterfly-shaped anti-fatigue mat, asshown and described.